Handle path and uri for the input filename.
Handle path and uri for the input filename.

I'm not sure to do it correctly, the double try is not nice.

wavewave/lasem,gjtorikian/lasem,wavewave/lasem,gjtorikian/lasem,janmarthedal/mathml2svg,gjtorikian/lasem,wavewave/lasem,janmarthedal/mathml2svg,janmarthedal/mathml2svg,janmarthedal/mathml2svg,wavewave/lasem,gjtorikian/lasem